KR20230100485A - Display panel and display device comprising the same - Google Patents

Abstract

The present invention relates to a display device in which an optical electronic device can be disposed in a display area. In order to solve the problem that the sensitivity of a touch panel disposed in a first sub-display area among display areas in which an optical electronic device is placed is reduced, a finger portion is formed on the edge of a touch electrode disposed in the first sub-display area, the size of the touch electrode disposed in the first sub-display area is configured to be small, or the sub-touch electrode is configured to be connected to the touch electrode disposed in the first sub-display area. Therefore, the sensing sensitivity of the touch electrode can be increased.

Description

Display panel and display device including the same {DISPLAY PANEL AND DISPLAY DEVICE COMPRISING THE SAME}

The present specification relates to a display panel and a display device including the same, and more particularly, a display panel including an under display camera (UDC) area in which an optical device such as a camera or various sensors is disposed on the rear surface of the display area is a touch panel. An object of the present invention is to provide a display panel having a touch panel structure that increases touch sensitivity of a touch panel corresponding to an under display camera (UDC) region when provided, and a display device including the same.

As technology develops, a display device may provide, in addition to an image display function, a photographing element using a camera, a 3D sensing element, and various sensing elements using lidar or time-of-flight. can To this end, the display device must include an optical and electronic device (also referred to as a light receiving device or sensor) such as a camera and a detection sensor.

Since the optical electronic device needs to receive light coming from the front surface of the display device, it must be installed in a place where light reception is advantageous. Therefore, conventionally, the camera (camera lens) and detection sensor are installed to be exposed through the front surface of the display device. For this reason, methods such as widening the bezel of the display panel, forming a notch in the display area of the display panel, or forming a physical hole have been attempted to install a camera or various sensing elements.

In order to improve this, research is being conducted on a technology capable of providing an optical electronic device such as a camera and a detection sensor without reducing the area of the display area of the display panel. Therefore, the inventors of the present specification have a light transmission structure in which an optical electronic device is provided on the rear surface of the display area of a display panel so that the optical electronic device can receive light normally without exposing the optical electronic device to the front of the display device. Display panels and display devices were invented.

Embodiments of the present disclosure may reduce the area of the non-display area of the display panel by providing the optical electronic device on the rear surface of the display area of the display panel, and the display panel and display device in which the optical and electronic device is not exposed to the front of the display device. can provide.

Embodiments of the present disclosure may provide a display panel and a display device that include a touch panel on the front of the display area of the display panel but do not lower touch sensitivity in the entire display area including the under display camera (UDC) area.

A display device according to an exemplary embodiment of the present specification includes a display area and a non-display area disposed around the display area, and the display area includes a first sub-display area including a plurality of light transmission areas and a first sub-display area. a display panel including a second sub-display area around the area; an optical electronic device disposed on a rear surface of the display area and overlapping the first sub-display area; and a mesh-shaped touch panel disposed on the front surface of the display panel and including a first touch area corresponding to the first sub-display area and a second touch area corresponding to the second sub-display area; The mesh of the first touch area is larger than that of the second touch area, and the corresponding area between each touch electrode disposed in the first touch area is greater than the corresponding area between each touch electrode disposed in the second touch area. .

The touch panel includes a mutual capacitance sensing type capacitance touch electrode that detects a capacitance generated between a driving touch electrode and a sensing touch electrode.

Sizes of the touch electrodes respectively disposed in the first touch region and the second touch region may be substantially equal to each other.

Each touch electrode disposed in the first touch area includes a first finger portion extending toward adjacent touch electrodes at an edge of the touch electrode, and each touch electrode disposed in the second touch area extends toward neighboring touch electrodes adjacent to each other. The second finger portion is included at the edge of the touch electrode, but a corresponding area between the first finger portions may be greater than a corresponding area between the second finger portions.

The first finger portion may be longer than the second finger portion.

In addition, the display device of the present specification includes a display area and a non-display area disposed around the display area, and the display area includes a first sub-display area including a plurality of light-transmitting areas and an area around the first sub-display area. a display panel including a second sub-display area; an optical electronic device disposed on a rear surface of the display area and overlapping the first sub-display area; and a mesh-shaped touch panel disposed on the front surface of the display panel and including a first touch area corresponding to the first sub-display area and a second touch area corresponding to the second sub-display area, A mesh of the area may be larger than that of the second touch area, and a size of each touch electrode disposed in the first touch area may be smaller than a size of each touch electrode disposed in the second touch area.

The touch panel includes a mutual capacitance sensing type capacitance touch electrode that detects a capacitance generated between a driving touch electrode and a sensing touch electrode.

At least one driving touch electrode disposed in the first touch area may be indirectly connected to the driving touch line, and at least one sensing touch electrode disposed in the first touch area may be indirectly connected to the sensing touch line.

The number of bridge electrodes connecting the touch electrodes disposed in the first touch area to each other is the number of bridge electrodes disposed in the second touch area corresponding to the same area as the first touch area among the second touch areas and connecting the touch electrodes to each other. There can be more.

The touch electrodes disposed in the first touch area may have the same size as each other, and the touch electrodes disposed in the second touch area may have the same size.

The touch panel may further include mesh-type sub-touch electrodes disposed on the insulating layer between the touch layers, disposed in the first touch region on the rear surface of the insulating layer between the touch layers, and electrically connected to the touch electrodes constituting the touch panel. can

Among the touch electrodes, touch electrodes that are separated from neighboring touch electrodes may be electrically connected to each other through sub-touch electrodes.

In addition, the display device of the present specification includes a display area and a non-display area disposed around the display area, and the display area includes a first sub-display area including a plurality of light-transmitting areas and an area around the first sub-display area. a display panel including a second sub-display area; an optical electronic device disposed on a rear surface of the display area and overlapping the first sub-display area; an insulating layer between touch layers disposed on an upper surface of the display panel; and a mesh-type touch panel disposed on one side of the touch interlayer insulating layer and including a first touch area corresponding to the first sub-display area and a second touch area corresponding to the second sub-display area,

The mesh of the first touch area is larger than the mesh of the second touch area, and the mesh type sub-touch panel is disposed on the other side of the insulating layer between the touch layers and is electrically connected to the touch panel disposed in the first touch area. can include

The touch panel includes a mesh-shaped driving touch electrode and a sensing touch electrode, the sub-touch panel includes a mesh-shaped sub-driving touch electrode and a sub-sensing touch electrode, and any one of the driving touch electrode and the sensing touch electrode may be connected to each other by any one of a sub-driving touch electrode and a sub-sensing touch electrode disposed on the other surface of the insulating interlayer.

When the driving touch electrodes are arranged along the driving touch line and connected to each other, the sensing touch electrodes are arranged along the sensing touch line intersecting the driving touch line and are separated from each other at the intersection of the driving touch line and the sensing touch line, and the sensing touch electrode is a sub- The sensing electrodes may be electrically connected to each other.

A mesh of the first touch area may be larger than an integer multiple of a mesh of the second touch area.

The sensing touch electrode and the sub-sensing electrode may be connected to each other through a contact hole formed in an insulating layer between touch layers.

Sub-driving touch electrodes arranged along the driving touch line may be physically separated from each other and electrically connected to corresponding driving touch electrodes.

Sensing touch electrodes arranged along the sensing touch line may be physically separated from each other and electrically connected to corresponding sub-sensing touch electrodes.

In the present specification, when an optical electronic device such as a camera and a detection sensor is disposed on the rear surface of the display area, a large area of the display area can be secured, and when a touch panel is embedded or added to the upper surface of the display panel, the optical electronic device It is possible to provide a touch panel capable of increasing touch sensitivity while reducing the density of touch electrodes in a touch area in which are arranged.

1A and 1B are plan views of a display device according to example embodiments of the present disclosure.
2 is a system configuration diagram of a display device according to example embodiments of the present disclosure.
3 is an equivalent circuit of a subpixel in a display panel according to example embodiments of the present disclosure.
4 is a layout diagram of subpixels in a first sub-display area included in a display area of a display panel according to embodiments of the present specification.
5 is a cross-sectional view of a first sub-display area and a second sub-display area of a display panel according to example embodiments of the present specification.
6A is a schematic diagram showing a relationship between a touch electrode and a pixel in a display area according to embodiments of the present specification.
6B is a schematic diagram illustrating a separation relationship between touch electrodes in a portion corresponding to a display area of a touch panel according to embodiments of the present specification.
7 is a plan view of a touch panel according to embodiments of the present specification.
FIG. 8 is an enlarged view of part A of FIG. 7 and an enlarged view of a first sub-display area and a second sub-display area around the first sub-display area according to embodiments of the present specification.
9 is a plan view illustrating a structure of a touch electrode of an area corresponding to a first sub-display area of a touch panel according to an embodiment of the present specification.
FIG. 10A illustrates a part of a cutting line of the touch panel in area B, which is the second sub-display area in FIG. 9 .
FIG. 11A illustrates a portion of a cutting line of the touch panel in area B', which is the first sub-display area in FIG. 9 .
Fig. 11B is a detailed structural diagram of Fig. 11A.
FIG. 12A is a top plan view of another exemplary embodiment illustrating a portion of a cut line of the touch panel in area B′, which is the first sub-display area in FIG. 9 .
Fig. 12B is a detailed structural diagram of Fig. 12A.
13 is a plan view illustrating a structure of a touch electrode of an area corresponding to a first sub-display area of a touch panel according to another embodiment of the present specification.
14 is a perspective view illustrating a structure of a touch electrode of an area corresponding to a first sub-display area of a touch panel according to another embodiment of the present specification.
15a, 15b, and 15c are perspective views illustrating relationships between touch electrodes according to the embodiment of the present invention disclosed in FIG. 14 .

Advantages and characteristics of the present specification, and methods for achieving them will become clear with reference to embodiments described later in detail in conjunction with the accompanying drawings. However, this specification is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, and only these embodiments make the disclosure of this specification complete, and those skilled in the art in the art to which this specification belongs It is provided to fully inform the person of the scope of the invention, and this specification is only defined by the scope of the claims.

The shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for explaining the embodiments of this specification are exemplary, so this specification is not limited to the matters shown. Like reference numbers designate like elements throughout the specification. In addition, in describing the present specification, if it is determined that a detailed description of a related known technology may unnecessarily obscure the subject matter of the present specification, the detailed description will be omitted. When 'includes', 'has', 'consists of', etc. mentioned in this specification is used, other parts may be added unless 'only' is used. In the case where a component is expressed in the singular, the case including the plural is included unless otherwise explicitly stated.

In interpreting the components, even if there is no separate explicit description, it is interpreted as including the error range.

In the case of a description of a positional relationship, for example, 'on top of', 'on top of', 'at the bottom of', 'next to', etc. Or, unless 'directly' is used, one or more other parts may be located between the two parts.

In the case of a description of a temporal relationship, for example, 'immediately' or 'directly' when a temporal precedence relationship is described in terms of 'after', 'following', 'next to', 'before', etc. It can also include non-continuous cases unless is used.

Although first, second, etc. are used to describe various components, these components are not limited by these terms. These terms are only used to distinguish one component from another. Therefore, the first component mentioned below may be the second component within the technical spirit of the present specification.

Each feature of the various embodiments of the present specification can be partially or entirely combined or combined with each other, technically various interlocking and driving are possible, and each embodiment can be implemented independently of each other or can be performed together in an association relationship. may be

Hereinafter, various embodiments of the present specification will be described in detail with reference to the accompanying drawings.

1A and 1B are plan views of a display device 100 according to example embodiments of the present specification.

Referring to FIGS. 1A and 1B , a display device 100 according to embodiments of the present specification may include a display panel 110 displaying an image and one or more optical and electronic devices 11 .

The display panel 110 may include a display area DA where an image is displayed and a non-display area NDA where an image is not displayed.

A plurality of subpixels may be disposed in the display area DA, and various signal lines for driving the plurality of subpixels may be disposed.

The non-display area NDA may be an area outside the display area DA. Various signal lines may be disposed in the non-display area NDA, and various driving circuits may be connected. The non-display area NDA may be bent and not visible from the front or covered by a case (not shown). The non-display area NDA is also referred to as a bezel or a bezel area.

In the display device 100 according to the exemplary embodiments of the present specification, one or more optical electronic devices 11 are electronic components positioned on the rear surface (opposite to the viewing surface) of the display panel 110 .

The light enters the front surface (viewing surface) of the display panel 110, passes through the display panel 110, and is transmitted to one or more opto-electronic devices 11 located on the rear surface (opposite the viewing surface) of the display panel 110. can

The optical electronic device 11 includes a photographic device using a camera, a sensor such as a proximity sensor and an illuminance sensor, a 3D sensing device, and various sensing devices using Lidar or a time of flight method. etc.

In the display panel 110 , the display area DA may include a normal area NA and one or more optical areas OA1 . Here, the general area NA is a display area that does not have a separate structure for improving light transmittance in order to increase the sensitivity of the optical electronic device 11 and is a second sub-display area. The first sub-display area OA1 is an area having a separate structure for improving light transmittance in order to increase the sensitivity of the optical-electronic device 11, and is a first sub-display area. Accordingly, the display area DA includes the first sub-display area OA1 and the second sub-display area NA.

Referring to FIGS. 1A and 1B , the first sub-display area OA1 may be an area overlapping one or more scientific electronic devices 11 .

Although the first sub-display area OA1 has a circular structure in FIG. 1A , the shape of the first sub-display area OA1 according to example embodiments is not limited thereto.

For example, as shown in FIG. 1B , the first sub-display area OA1 may have an octagonal shape, and may also have various polygonal shapes.

In the first sub-display area OA1, both an image display structure and a light transmission structure must be formed. That is, since the first sub-display area OA1 is a partial area of the display area DA, sub-pixels for displaying images should be disposed in the first sub-display area OA1. And, a light transmission structure for transmitting light to one or more optical and electronic devices 11 should be formed in the first sub-display area OA1.

The optical electronic device 11 is a device that needs to receive light, but is positioned on the rear surface (below, opposite to the viewing surface) of the display panel 110 and receives light transmitted through the display panel 110 .

The optical electronic device 11 is not exposed on the front surface (viewing surface) of the display panel 110 . Therefore, when the user views the screen of the display device 110, the optical electronic device 11 is not visually recognized.

The first sub-display area OA1 may be divided into a plurality of areas. For example, when a plurality of optical-electronic devices 11 such as a camera, an illuminance sensor, and a lidar are arranged in the optical-electronic device 11, the optical-electronic device 11 is divided into smaller sub-display areas corresponding to each optical-electronic device 11. It can be. However, for convenience of description, one optical-electronic device 11 and the corresponding first sub-display area OA1 will be described.

Both the second sub-display area NA and the first sub-display area OA1 included in the display area DA are areas capable of displaying an image, but the second sub-display area NA has a light transmission structure. is not required, and the first sub-display area OA1 is an area requiring a light transmission structure. Therefore, the first sub-display area OA1 should have a light transmittance higher than or equal to a certain level, and the second sub-display area NA may not transmit light at all or may have a lower light transmittance than a certain level.

For example, the first sub-display area OA1 and the second sub-display area NA may have a resolution, a sub-pixel arrangement structure, a sub-pixel number per unit area, an electrode structure, a wiring structure, an electrode arrangement structure, or a wiring arrangement. Structures may be different.

For example, the number of subpixels per unit area in the first sub-display area OA1 may be smaller than the number of subpixels per unit area in the second sub-display area NA. That is, the resolution of one first sub-display area OA1 may be lower than that of the second sub-display area NA. Here, the number of subpixels per unit area is a unit for measuring resolution, and may also be referred to as PPI (Pixels Per Inch), which means the number of pixels in one inch.

In other words, the first sub-display area OA1 may have a lower PPI than the second sub-display area NA.

The first sub-display area OA1 may have various shapes such as a circle, an ellipse, a rectangle, a hexagon, or an octagon. For convenience of description, the first sub-display area OA1 has an elliptical shape as an example.

When the first optical electronic device 11 hidden under the panel 100 is a camera, the display device 100 according to the embodiments of the present specification may be referred to as a display to which UDC (Under Display Camera) technology is applied as a commercial term. can For the detailed description of this specification, C in UDC does not mean only a camera, but includes all various optical and electronic devices. Also, the first sub-display area 0A1 may be called a UDC area.

According to this, in the case of the display device 100 according to the exemplary embodiments of the present specification, since it is not necessary to form a notch or a camera hole for camera exposure in the display panel 110, the display area DA There is an advantage in that the reduction in the area of , the size of the bezel area can be reduced, and the screen can be designed freely without design constraints.

2 is a system configuration diagram of the display device 100 according to embodiments of the present specification.

Referring to FIG. 2 , the display device 100 may include a display panel 110 and a display driving circuit as components for displaying an image.

The display driving circuit is a circuit for driving the display panel 110 and may include a data driving circuit 220 , a gate driving circuit 230 , a display controller 240 , and the like.

The display panel 110 may include a display area DA where an image is displayed and a non-display area NDA where an image is not displayed. The non-display area NDA may be an area outside the display area DA, and may also be referred to as a bezel area. All or part of the non-display area NDA may be an area visible from the front of the display device 100 or an area that is bent and not visible from the front of the display device 100 .

The display panel 110 may include a substrate SUB and a plurality of subpixels SP disposed on the substrate SUB. Also, the display panel 110 may further include various types of signal lines to drive the plurality of subpixels SP.

The display device 100 according to the exemplary embodiments of the present specification may be a liquid crystal display device or a self-emitting display device in which the display panel 110 emits light by itself. When the display device 100 according to the exemplary embodiments of the present specification is a self-emitting display device, each of the plurality of subpixels SP may include a light emitting element.

For example, the display device 100 according to the exemplary embodiments of the present specification may be an organic light emitting display device in which a light emitting element is implemented as an organic light emitting diode (OLED). For another example, the display device 100 according to the exemplary embodiments of the present specification may be an inorganic light emitting display device in which a light emitting element is implemented as an inorganic light emitting diode. As another example, the display device 100 according to the exemplary embodiments of the present specification may be a quantum dot display device implemented with quantum dots, which are semiconductor crystals in which a light emitting element emits light by itself.

The structure of each of the plurality of subpixels SP may vary according to the type of the display device 100 . For example, when the display device 100 is a self-emitting display device in which the sub-pixels SP emit light themselves, each sub-pixel SP includes a light-emitting element emitting light by itself, one or more transistors, and one or more capacitors. can do.

For example, various types of signal lines include a plurality of data lines DL that transmit data signals (also referred to as data voltages or video signals) and gate signals (also referred to as scan signals). A plurality of gate lines GL may be included.

The plurality of data lines DL and the plurality of gate lines GL may cross each other. Each of the plurality of data lines DL may be disposed while extending in the first direction. Each of the plurality of gate lines GL may be disposed while extending in the second direction.

Here, the first direction may be a column direction and the second direction may be a row direction. Alternatively, the first direction may be a row direction and the second direction may be a column direction.

The data driving circuit 220 is a circuit for driving the plurality of data lines DL, and may output data signals to the plurality of data lines DL. The gate driving circuit 230 is a circuit for driving the plurality of gate lines GL, and may output gate signals to the plurality of gate lines GL.

The display controller 240 is a device for controlling the data driving circuit 220 and the gate driving circuit 230, driving timing of the plurality of data lines DL and driving the plurality of gate lines GL. You can control the timing.

The display controller 240 supplies the data driving control signal DCS to the data driving circuit 220 to control the data driving circuit 220, and the gate driving control signal GCS to control the gate driving circuit 230. ) may be supplied to the gate driving circuit 230 .

The display controller 240 may receive input image data from the host system 250 and supply image data Data to the data driving circuit 220 based on the input image data.

The data driving circuit 220 may supply data signals to the plurality of data lines DL according to driving timing control of the display controller 240 .

The data driving circuit 220 receives digital image data (Data) from the display controller 240 and converts the received image data (Data) into analog data signals to form a plurality of data lines ( DL) can be output.

The gate driving circuit 230 may supply gate signals to the plurality of gate lines GL according to timing control of the display controller 240 . The gate driving circuit 230 receives a first gate voltage corresponding to a turn-on level voltage and a second gate voltage corresponding to a turn-off level voltage together with various gate driving control signals GCS, and generates gate signals. and supply the generated gate signals to the plurality of gate lines GL.

For example, the data driving circuit 220 may be connected to the display panel 110 by a tape automated bonding (TAB) method, a chip on glass (COG) or a chip on panel (COP: It may be connected to the bonding pad of the display panel 110 in a chip on panel (COF) method or connected to the display panel 110 in a chip on film (COF) method.

The gate driving circuit 230 is connected to the display panel 110 using a tape automated bonding (TAB) method, or is bonded to a bonding pad (bonding) of the display panel 110 using a chip on glass (COG) or chip on panel (COP) method. pad) or connected to the display panel 110 according to a chip on film (COF) method. Alternatively, the gate driving circuit 230 may be formed in the non-display area NDA of the display panel 110 in a gate-in-panel (GIP) type. The gate driving circuit 230 may be disposed on or connected to the substrate. That is, in the case of the GIP type, the gate driving circuit 230 may be disposed in the non-display area NDA of the substrate. The gate driving circuit 230 may be connected to the substrate in the case of a chip on glass (COG) type or a chip on film (COF) type.

Meanwhile, at least one of the data driving circuit 220 and the gate driving circuit 230 may be disposed in the display area DA of the display panel 110 . For example, at least one of the data driving circuit 220 and the gate driving circuit 230 may be disposed not to overlap with the subpixels SP, or partially or entirely with the subpixels SP. They may be arranged overlapping.

The data driving circuit 220 may be connected to one side (eg, upper or lower side) of the display panel 110 . Depending on the driving method and the panel design method, the data driving circuit 220 may be connected to both sides (eg, upper and lower sides) of the display panel 110 or to two or more of the four sides of the display panel 110. may be

The gate driving circuit 230 may be connected to one side (eg, the left or right side) of the display panel 110 . Depending on the driving method and the panel design method, the gate driving circuit 230 may be connected to both sides (eg, left and right) of the display panel 110 or to two or more of the four sides of the display panel 110. may be

The display controller 240 may be implemented as a separate component from the data driving circuit 220 or integrated with the data driving circuit 220 and implemented as an integrated circuit.

The display controller 240 may be a timing controller used in a typical display technology, a control device capable of performing other control functions including a timing controller, or a control device different from the timing controller. There is, or it may be a circuit in the control device. The display controller 240 may be implemented with various circuits or electronic components such as an Integrated Circuit (IC), a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), or a processor.

The display controller 240 may be mounted on a printed circuit board or a flexible printed circuit and electrically connected to the data driving circuit 220 and the gate driving circuit 230 through the printed circuit board or the flexible printed circuit.

The display controller 240 may transmit and receive signals to and from the data driving circuit 220 according to one or more predetermined interfaces. Here, for example, the interface may include a Low Voltage Differential Signaling (LVDS) interface, an EPI interface, or a Serial Peripheral Interface (SP).

In order to further provide a touch sensing function as well as an image display function, the display device 100 according to embodiments of the present specification detects whether a touch has occurred by a touch object such as a finger or a pen by sensing the touch sensor and the touch sensor. A touch sensing circuit for detecting or detecting a touch position may be included.

The touch sensing circuit includes a touch driving circuit 260 that drives and senses a touch sensor to generate and output touch sensing data, and a touch controller 270 that can detect a touch occurrence or detect a touch location using the touch sensing data. etc. may be included.

A touch sensor may include a plurality of touch electrodes. The touch sensor may further include a plurality of touch lines for electrically connecting the plurality of touch electrodes and the touch driving circuit 260 .

The touch sensor may exist outside the display panel 110 in the form of a touch panel or inside the display panel 110 . When the touch sensor exists outside the display panel 110 in the form of a touch panel, the touch sensor is referred to as an external type. When the touch sensor is an external type, the touch panel and the display panel 110 may be manufactured separately and combined during an assembly process. The external touch panel may include a touch panel substrate and a plurality of touch electrodes on the touch panel substrate.

When the touch sensor is present inside the display panel 110 , the touch sensor may be formed on the substrate SUB along with signal lines and electrodes related to display driving during a manufacturing process of the display panel 110 .

The touch driving circuit 260 may generate touch sensing data by supplying a touch driving signal to at least one of a plurality of touch electrodes and sensing at least one of the plurality of touch electrodes.

The touch sensing circuit may perform touch sensing using a self-capacitance sensing method or a mutual-capacitance sensing method.

When the touch sensing circuit performs touch sensing in a self-capacitance sensing method, the touch sensing circuit may perform touch sensing based on capacitance between each touch electrode and a touch object (eg, a finger or a pen).

According to the self-capacitance sensing method, each of the plurality of touch electrodes may serve as both a driving touch electrode and a sensing touch electrode. The touch driving circuit 260 may drive all or part of the plurality of touch electrodes and sense all or part of the plurality of touch electrodes.

When the touch sensing circuit performs touch sensing in a mutual-capacitance sensing method, the touch sensing circuit may perform touch sensing based on capacitance between touch electrodes.

According to the mutual-capacitance sensing method, the plurality of touch electrodes are divided into driving touch electrodes and sensing touch electrodes. The touch driving circuit 260 may drive driving touch electrodes and sense sensing touch electrodes.

The touch driving circuit 260 and the touch controller 270 included in the touch sensing circuit may be implemented as separate devices or as one device. Also, the touch driving circuit 260 and the data driving circuit 220 may be implemented as separate devices or may be implemented as one device.

The display device 100 may further include a power supply circuit that supplies various types of power to the display driving circuit and/or the touch sensing circuit.

The display device 100 according to the embodiments of the present specification may be a mobile terminal such as a smartphone or tablet, or a monitor or television (TV) of various sizes, but is not limited thereto, and various types capable of displaying information or images , may be displays of various sizes.

3 is an equivalent circuit of the sub-pixel SP in the display panel 110 according to the exemplary embodiments of the present specification.

Each of the sub-pixels SP disposed in the second sub-display area NA included in the display area DA of the display panel 110 and the first sub-display area OA1 includes a light emitting element ED. And, the driving transistor DRT for driving the light emitting element ED, the scan transistor SCT for transferring the data voltage VDATA to the first node N1 of the driving transistor DRT, and during one frame A storage capacitor Cst for maintaining a constant voltage may be included.

The driving transistor DRT receives a driving voltage ELVDD from a first node N1 to which a data voltage can be applied, a second node N2 electrically connected to the light emitting device ED, and a driving voltage line DVL. It may include a third node (N3) to be applied. In the driving transistor DRT, the first node N1 is a gate node, the second node N2 may be a source node or a drain node, and the third node N3 may be a drain node or a source node.

The light emitting element ED may include an anode electrode AE, an emission layer EL, and a cathode electrode CE. The anode electrode AE may be a pixel electrode disposed in each sub-pixel SP, and may be electrically connected to the second node N2 of the driving transistor DRT of each sub-pixel SP. The cathode electrode CE may be a common electrode commonly disposed in a plurality of subpixels SP, and a ground voltage ELVSS may be applied.

For example, the anode electrode AE may be a pixel electrode, and the cathode electrode CE may be a common electrode. Conversely, the anode electrode AE may be a common electrode, and the cathode electrode CE may be a pixel electrode. In the following, for convenience of description, it is assumed that the anode electrode AE is a pixel electrode and the cathode electrode CE is a common electrode.

For example, the light emitting device ED may be an organic light emitting diode (OLED), an inorganic light emitting diode, or a quantum dot light emitting device. In this case, when the light emitting device ED is an organic light emitting diode, the light emitting layer EL of the light emitting device ED may include an organic light emitting layer containing an organic material.

The on/off of the scan transistor SCT is controlled by the scan signal SCAN, which is a gate signal applied through the gate line GL, and the first node N1 of the driving transistor DRT and the data line DL ) can be electrically connected between them.

The storage capacitor Cst may be electrically connected between the first node N1 and the second node N2 of the driving transistor DRT.

As shown in FIG. 3 , each subpixel SP may have a 2T (Transistor) 1C (Capacitor) structure including two transistors DRT and SCT and one capacitor Cst. In some cases, One or more transistors may be further included, or one or more capacitors may be further included.

The storage capacitor Cst is not a parasitic capacitor (eg, Cgs or Cgd) that is an internal capacitor that may exist between the first node N1 and the second node N2 of the driving transistor DRT, but It may be an external capacitor intentionally designed outside the driving transistor DRT.

Each of the driving transistor DRT and scan transistor SCT may be an n-type transistor or a p-type transistor.

Since the circuit elements (in particular, the light emitting element ED) in each sub-pixel SP are vulnerable to external moisture or oxygen, external moisture or oxygen permeates into the circuit elements (in particular, the light emitting element ED). An encapsulation layer (ENCAP) may be disposed on the display panel 110 to prevent this from happening. The encapsulation layer ENCAP may be disposed to cover the light emitting elements ED.

In addition, in the embodiments of the present specification, a touch panel TP may be further added to an upper portion of the encapsulation layer ENCAP. The touch panel TP may be embedded in the surface of the encapsulation layer ENCAP, or an independent touch panel TP may be added on the encapsulation layer ENCAP.

4 illustrates sub-pixels SP in the first sub-display area OA1 and the second sub-display area NA included in the display area DA of the display panel 110 according to embodiments of the present specification. ) is a layout diagram.

Referring to FIG. 4 , a plurality of sub-pixels SP may be disposed in each of the second sub-display area NA and the first sub-display area OA1 included in the display area DA.

For example, the plurality of sub-pixels SP may include a red sub-pixel (Red SP) emitting red light, a green sub-pixel (Green SP) emitting green light, and a blue sub-pixel (Blue SP) emitting blue light. ) may be included.

Accordingly, each of the second sub-display area NA and the first sub-display area OA1 includes the light emitting areas EA of the red sub-pixels Red SP and the green sub-pixels Green SP. It may include light emitting areas EA and light emitting areas EA of blue sub-pixels Blue SP.

Referring to FIG. 4 , the second sub-display area NA may not include a light transmission structure and may include light emitting areas EA.

However, the first sub-display area OA1 should include not only the light emitting areas EA, but also a light transmission structure.

Accordingly, the first sub-display area OA1 may include light emitting areas EA and first transmission areas TA1.

The light emitting areas EA and the transmissive areas TA1 may be distinguished according to whether or not light is transmitted. That is, the light emitting regions EA may be regions in which light transmission is impossible, and the transmission regions TA1 may be regions in which light transmission is possible.

In addition, the light emitting areas EA and the transmissive areas TA1 may be distinguished according to whether or not a specific metal layer CE is formed. For example, the cathode electrode CE may be formed in the emission areas EA, and the cathode electrode CE may not be formed in the transmission areas TA1. A light shield layer may be formed in the light emitting areas EA, and the light shield layer may not be formed in the transmissive areas TA1.

Since the first sub-display area OA1 includes the transmissive areas TA1, the first sub-display area OA1 is an area through which light can pass.

Meanwhile, as shown in FIG. 4 , the transmissive area TA1 of the first sub-display area OA1 may have a circular planar shape, but the first sub-display area TA1 according to the exemplary embodiments of the present specification The planar structure is not limited thereto.

Also, as shown in FIG. 4 , in the exemplary embodiments of the present specification, it is assumed that the first sub-display area OA1 is positioned above the display area DA.

5 is cross-sectional views of each of the first sub-display area OA1 and the second sub-display area NA included in the display area DA of the display panel 110 according to embodiments of the present specification.

A stacked structure of the second sub-display area NA will be described with reference to FIG. 5 . For reference, the light emitting area EA included in the first sub-display area OA1 may have the same stacked structure as the light emitting area EA in the second sub-display area NA.

Referring to FIG. 5 , the substrate SUB may include a first substrate SUB1, an interlayer insulating film IPD, and a second substrate SUB2. The interlayer insulating film IPD may be positioned between the first substrate SUB1 and the second substrate SUB2. Since the substrate SUB is composed of the first substrate SUB1, the interlayer insulating film IPD, and the second substrate SUB2, moisture permeation can be prevented. For example, the first substrate SUB1 and the second substrate SUB2 may be polyimide (PI) substrates. The first substrate SUB1 may be referred to as a primary PI substrate, and the second substrate SUB2 may be referred to as a secondary PI substrate.

On the substrate SUB, various patterns (ACT, SD1, GATE) for forming transistors such as the driving transistor DRT, various insulating films (MBUF, ABUF1, ABUF2, GI, ILD1, ILD2, PAS0) and various metals are formed. Patterns TM, GM, ML1, and ML2 may be arranged.

A multi-buffer layer MBUF may be disposed on the second substrate SUB2, and a first active buffer layer ABUF1 may be disposed on the multi-buffer layer MBUF.

A first metal layer ML1 and a second metal layer ML2 may be disposed on the first active buffer layer ABUF1. Here, the first metal layer ML1 and the second metal layer ML2 may be light shield layers (LS) that block light.

A second active buffer layer ABUF2 may be disposed on the first metal layer ML1 and the second metal layer ML2 . The active layer ACT of the driving transistor DRT may be disposed on the second active buffer layer ABUF2 .

A gate insulating layer GI may be disposed while covering the active layer ACT.

A gate electrode GATE of the driving transistor DRT may be disposed on the gate insulating layer GI. In this case, the gate material layer GM along with the gate electrode GATE of the driving transistor DRT may be disposed on the gate insulating layer GI at a position different from the formation position of the driving transistor DRT.

A first interlayer insulating layer ILD1 may be disposed while covering the gate electrode GATE and the gate material layer GM. A metal pattern TM may be disposed on the first interlayer insulating layer ILD1. The metal pattern TM may be located at a location different from the formation location of the driving transistor DRT. A second interlayer insulating layer ILD2 may be disposed while covering the metal pattern TM on the first interlayer insulating layer ILD1.

Two first source-drain electrode patterns SD1 may be disposed on the second interlayer insulating layer ILD2. One of the two first source-drain electrode patterns SD1 is a source node of the driving transistor DRT, and the other is a drain node of the driving transistor DRT.

The two first source-drain electrode patterns SD1 are connected to one side of the active layer ACT through contact holes of the second interlayer insulating film ILD2, the first interlayer insulating film ILD1, and the gate insulating film GI. It may be electrically connected to the other side.

A portion of the active layer ACT overlapping the gate electrode GATE is a channel region. One of the two first source-drain electrode patterns SD1 may be connected to one side of the channel region in the active layer ACT, and the other one of the two first source-drain electrode patterns SD1 may be connected to the active layer (ACT). ACT) can be connected to the other side of the channel area.

A passivation layer PAS0 is disposed while covering the two first source-drain electrode patterns SD1. A planarization layer PLN may be disposed on the passivation layer PAS0. The planarization layer PLN may include a first planarization layer PLN1 and a second planarization layer PLN2.

A first planarization layer PLN1 may be disposed on the passivation layer PAS0.

A second source-drain electrode pattern SD2 may be disposed on the first planarization layer PLN1. The second source-drain electrode pattern SD2 may be connected to one of the two first source-drain electrode patterns SD1 through the contact hole of the first planarization layer PLN1.

The second planarization layer PLN2 may be disposed while covering the second source-drain electrode pattern SD2. A light emitting device ED may be disposed on the second planarization layer PLN2 .

Looking at the stacked structure of the light emitting device ED, the anode electrode AE may be disposed on the second planarization layer PLN2. The anode electrode AE may be electrically connected to the second source-drain electrode pattern SD2 through the contact hole of the second planarization layer PLN2.

The bank BANK may be disposed while covering a portion of the anode electrode AE. A part of the bank BANK corresponding to the light emitting area EA of the sub-pixel SP may be open.

A portion of the anode electrode AE may be exposed through an opening (open portion) of the bank BANK. The light emitting layer EL may be positioned on a side surface of the bank BANK and an opening (open portion) of the bank BANK. All or part of the light emitting layer EL may be positioned between adjacent banks BANK.

At the opening of the bank BANK, the light emitting layer EL may contact the anode electrode AE. A cathode electrode CE may be disposed on the light emitting layer EL.

The light emitting element ED may be formed by the anode electrode AE, the light emitting layer EL, and the cathode electrode CE. The light emitting layer EL may include an organic layer.

An encapsulation layer ENCAP may be disposed on the aforementioned light emitting device ED.

The encapsulation layer ENCAP may have a single-layer structure or a multi-layer structure. For example, as shown in FIG. 5 , the encapsulation layer ENCAP may include a first encapsulation layer PAS1 , a second encapsulation layer PCL, and a third encapsulation layer PAS2 .

For example, the first encapsulation layer PAS1 and the third encapsulation layer PAS2 may be inorganic films, and the second encapsulation layer PCL may be an organic film. Among the first encapsulation layer PAS1 , the second encapsulation layer PCL and the third encapsulation layer PAS2 , the second encapsulation layer PCL is the thickest and may serve as a planarization layer.

The first encapsulation layer PAS1 may be disposed on the cathode electrode CE and may be disposed closest to the light emitting element ED. The first encapsulation layer PAS1 may be formed of an inorganic insulating material capable of being deposited at a low temperature. For example, the first encapsulation layer PAS1 may be silicon nitride (SiNx), silicon oxide (SiOx), silicon oxynitride (SiON), or aluminum oxide (Al ₂ O ₃ ). Since the first encapsulation layer PAS1 is deposited in a low-temperature atmosphere, during the deposition process, the first encapsulation layer PAS1 may prevent the light emitting layer EL including an organic material vulnerable to a high-temperature atmosphere from being damaged.

The second encapsulation layer PCL may have an area smaller than that of the first encapsulation layer PAS1. In this case, the second encapsulation layer PCL may be formed to expose both ends of the first encapsulation layer PAS1. The second encapsulation layer PCL serves as a buffer to relieve stress between the respective layers due to bending of the display device 100 and may also serve to enhance planarization performance. For example, the second encapsulation layer PCL may be made of acrylic resin, epoxy resin, polyimide, polyethylene, or silicon oxycarbon (SiOC), and may be formed of an organic insulating material. For example, the second encapsulation layer PCL may be formed through an inkjet method.

The third inorganic encapsulation layer PAS2 may be formed on the substrate SUB on which the second encapsulation layer PCL is formed to cover the top and side surfaces of the second encapsulation layer PCL and the first encapsulation layer PAS1, respectively. can The third encapsulation layer PAS2 may minimize or block penetration of external moisture or oxygen into the first inorganic encapsulation layer PAS1 and the organic encapsulation layer PCL. For example, the third encapsulation layer PAS2 may be formed of an inorganic insulating material such as silicon nitride (SiNx), silicon oxide (SiOx), silicon oxynitride (SiON), or aluminum oxide (Al ₂ O ₃ ).

A touch sensor TS may be disposed on the encapsulation layer ENCAP. A detailed description of the touch sensor structure is as follows.

A touch buffer layer 610 may be disposed on the encapsulation layer ENCAP. A touch sensor TS may be disposed on the touch buffer layer 610 .

The touch sensor TS may include touch sensor metals TSM and bridge electrodes BRG positioned on different layers.

A touch interlayer insulating layer 620 may be disposed between the touch sensor metals TSM and the bridge electrode BRG. The touch sensor metals TSM may include driving touch electrodes and sensing touch electrodes.

For example, the touch sensor metals TSM may include a first touch sensor metal TSM, a second touch sensor metal TSM, and a third touch sensor metal TSM disposed adjacent to each other. There is a third touch sensor metal (TSM) between the first touch sensor metal (TSM) and the second touch sensor metal (TSM), and the first touch sensor metal (TSM) and the second touch sensor metal (TSM) are electrically connected to each other. When connected, the first touch sensor metal (TSM) and the second touch sensor metal (TSM) may be electrically connected to each other through the bridge electrode (BRG) in another layer. The bridge electrode BRG may be insulated from the third touch sensor metal TSM by the touch interlayer insulating layer 620 .

When the touch sensor TS is formed on the display panel 110 , chemicals used in the process (developer, etchant, etc.) or moisture from the outside may be generated. By disposing the touch sensor TS on the touch buffer layer 610 , penetration of chemicals or moisture into the light emitting layer EL including an organic material during the manufacturing process of the touch sensor TS can be prevented. Accordingly, the touch buffer layer 610 may prevent damage to the light emitting layer EL, which is vulnerable to chemicals or moisture.

The touch buffer layer 610 can be formed at a low temperature below a certain temperature (eg, 100 degrees Celsius) and has a low permittivity of 1 to 3 in order to prevent damage to the light emitting layer EL including an organic material vulnerable to high temperatures. It is made of organic insulating material. For example, the touch buffer layer 610 may be formed of an acryl-based, epoxy-based, or siloxan-based material. As the display device 100 is bent, the encapsulation layer ENCAP may be damaged and the touch sensor metal positioned on the touch buffer layer 610 may be broken. Even if the display device 100 is bent, the touch buffer layer 610 made of an organic insulating material and having planarization performance prevents damage to the encapsulation layer ENCAP or cracking of the metals TSM and BRG constituting the touch sensor TS. can prevent

A protective layer PAC may be disposed while covering the touch sensor TS. The protective layer PAC may be an organic insulating layer.

Next, the stacked structure of the first sub-display area OA1 will be described with reference to FIG. 5 .

The light emitting area EA in the first sub-display area OA1 may have the same stacked structure as the stacked structure of the second sub-display area NA. Therefore, below, the stacked structure of the first transmission area TA1 in the first sub-display area OA1 will be described in detail.

The cathode electrode CE is disposed in the emission area EA included in the first sub-display area OA1 and the second sub-display area NA, but the first transmission within the first sub-display area OA1 is The cathode electrode CE may not be disposed in the area TA1. That is, the first transmission area TA1 in the first sub-display area OA1 may correspond to the opening of the cathode electrode CE.

In addition, the light emitting area EA included in the second sub-display area NA and the first sub-display area OA1 includes at least one of the first metal layer ML1 and the second metal layer ML2. Although the shield layer LS is disposed, the light shield layer LS may not be disposed in the first transmission area TA1 in the first sub-display area OA1. That is, the first transmission area TA1 in the first sub-display area OA1 may correspond to the opening of the light shield layer LS.

The substrate SUB and various insulating layers MBUF, ABUF1, ABUF2, GI, ILD1, and ILD2 disposed in the light emitting area EA included in the second sub-display area NA and the first sub-display area OA1 , PAS0, PLN (PLN1, PLN2), BANK, ENCAP (PAS1, PCL, PAS2), 610, 620, PAC) may be equally disposed in the first transmission area TA1 in the first sub-display area OA1. can

However, in the light emitting area EA included in the second sub-display area NA and the first sub-display area OA1, in addition to the insulating material, a material layer having electrical characteristics (eg, a metal material layer, a semiconductor layer) etc.) may not be disposed in the first transmission area TA1 in the first sub-display area OA1.

For example, referring to FIG. 5 , the metal material layers ML1, ML2, GATE, GM, TM, SD1, and SD2 related to the transistor and the semiconductor layer ACT may not be disposed in the first transmission region TA1. there is.

Also, the anode electrode AE and the cathode electrode CE included in the light emitting element ED may not be disposed in the first transmission area TA1. However, the light emitting layer EL may or may not be disposed in the first transmission area TA1.

Accordingly, a material layer (eg, a metal material layer, a semiconductor layer, etc.) having electrical characteristics is not disposed in the first transmission area TA1 in the first sub-display area OA1, so that the first sub-display area Light transmittance of the first transmission area TA1 in (OA1) may be improved. Accordingly, the opto-electronic device 11 may perform a corresponding function (eg, image sensing) by receiving light transmitted through the first transmission area TA1.

Since all or part of the first transmission area TA1 in the first sub-display area OA1 overlaps the optical-electronic device 11, for the normal operation of the optical-electronic device 11, the first sub-display area The transmittance of the first transmission area TA1 in the area OA1 needs to be further increased.

To this end, in the display panel 110 of the display device 100 according to the exemplary embodiments of the present specification, the first transmission area TA1 in the first sub-display area OA1 has a transmittance improvement structure (TIS). ) can have.

Referring to FIG. 5 , a plurality of insulating films included in the display panel 110 include buffer layers MBUF, ABUF1, and ABUF2 between the substrates SUB1 and SUB2 and the transistors DRT and SCT, the transistor DRT and the light emitting element. It may include planarization layers PLN1 and PLN2 between (ED), and an encapsulation layer (ENCAP) on the light emitting device (ED).

The plurality of insulating films included in the display panel 110 may include a touch buffer layer 610 on the encapsulation layer ENCAP, an insulating film 620 between touch layers, and the like.

The first transmission area TA1 in the first sub-display area OA1 is a transmittance enhancement structure TIS, and may have a structure in which the first planarization layer PLN1 and the passivation layer PAS0 are depressed. .

Among the plurality of insulating layers, the first planarization layer PLN1 may include at least one concavo-convex portion (or depression). Here, the first planarization layer PLN1 may be an organic insulating layer.

When the first planarization layer PLN1 is depressed, the second planarization layer PLN2 may play a substantial planarization role. Meanwhile, the second planarization layer PLN2 may also be depressed. In this case, the second encapsulation layer PCL may play a substantial planarization role.

The recessed portion of the first planarization layer PLN1 and the passivation layer PAS0 includes insulating films ILD2 , IDL1 , and GI for forming the transistor DRT and buffer layers ABUF1 , ABUF2 , and MBUF positioned thereunder. ) and can come down to the top of the second substrate SUB2.

The substrate SUB may include at least one concave portion as a transmittance enhancing structure TIS. For example, in the first transmission area TA1 , the upper surface of the second substrate SUB1 may be depressed or pierced.

The first encapsulation layer PAS1 and the second encapsulation layer PCL constituting the encapsulation layer ENCAP may also have a recessed transmittance enhancing structure TIS. Here, the second encapsulation layer PCL may be an organic insulating layer.

In some cases, the substrate SUB may not include a concave portion in the first transmission area TA1, and the first encapsulation layer PAS1 and the second encapsulation layer PCL constituting the encapsulation layer ENCAP may also have surfaces. It can be made in this flat shape.

The protective layer PAC may be disposed while covering the touch sensor TS on the encapsulation layer ENCAP to protect the touch sensor TS.

The touch sensor TS may be formed of a mesh-shaped touch sensor metal TSM. That is, when the touch sensors TS are disposed in the first sub-display area OA1, the touch sensors TS are arranged at regular intervals in the first direction to improve light transmittance in the first sub-display area OA1 and are parallel to each other. It includes a plurality of first touch sensor lines TSL1 and a plurality of second touch sensor lines TSL2 arranged in a direction crossing the first touch sensor lines TSL1.

Referring to FIG. 6A , the structure of the touch sensor TS and the relationship between sub-pixels will be described in detail.

In the display panel 110 including the first sub-display area OA1, the mesh-shaped touch sensor TS is configured to improve light transmittance and not reduce touch sensitivity in the first sub-display area OA1. .

Referring to FIG. 6A , the mesh-type touch sensor TS includes a plurality of first touch sensor lines TSL1 and first touch sensor lines (TSL1) arranged parallel to each other at regular intervals in a first direction, which may be an X-axis direction. A mesh shape is formed by a plurality of second touch sensor lines TSL2 arranged at regular intervals parallel to each other in a second direction that may be a Y-axis direction and a direction crossing TSL1).

One lattice partitioned by the first touch sensor line TSL1 and the second touch sensor line TSL2 constitutes a net. A mesh can be called a mesh.

One sub-pixel (SPX) is disposed corresponding to each mesh. Accordingly, the light emitting layer disposed in the sub-pixel is not covered by the touch sensor metal.

In addition, the touch sensor TS constitutes the touch sensor metal TSM by cutting the first touch sensor line TSL1 and the second touch sensor line TSL2 in a constant pattern.

Referring to FIG. 6A , the configuration of the touch sensor metal TSM of the mesh-type touch sensor TS will be described in detail.

More specifically, the touch sensor metal TSM includes a driving touch electrode TXE and a sensing touch electrode RXE adjacent to each other. The driving touch electrodes TXE adjacent to each other are electrically connected to form a touch driving line TXL. When the sensing touch electrode RXE is positioned between the driving touch electrodes TXE, the driving touch electrodes TXE may be connected to each other by a bridge electrode BRG. Conversely, when the driving touch electrode TXE is positioned between the sensing touch electrodes RXE, the sensing touch electrodes RXE may be connected to each other by the bridge electrode BRG.

Referring to FIG. 6B , since both the first touch sensor line TSL1 and the second touch sensor line TSL2 constituting the mesh-type touch sensor TS are positioned on the touch interlayer insulating layer, the touch sensor metal TSM ), the mesh-shaped touch sensors TS may be cut by a cutting line CL to be separated into a driving touch electrode TXE and a sensing touch electrode RXE.

As a result, referring to FIG. 8 , the driving touch electrode TXE and the sensing touch electrode RXE may have a diamond shape when viewed from a distance.

Referring to FIG. 6B , the driving touch electrode TXE and the sensing touch electrode RXE may be separated by two cutting lines CL spaced at regular intervals to prevent a short circuit between them. .

7 is a schematic plan view of a touch panel. The touch panel TP includes driving touch electrodes TXE and sensing touch electrodes RXE arranged in a matrix form.

The driving touch electrode TXE is connected between neighboring driving touch electrodes TXE by the first bridge electrode BRG1 to form the driving touch line TXL. In FIG. 7 , the driving touch line TXL may be a wire arranged in the X-axis direction.

The sensing touch electrode RXE is connected between neighboring sensing touch electrodes RXE by the second bridge electrode BRG2 to form the sensing touch electrode RXL.

Since a short circuit may occur when the first bridge electrode BRG1 and the second bridge electrode BRG2 are positioned on the same plane, one bridge electrode BRG is located under the touch interlayer insulating layer 620 and is adjacent to the other. The touch electrodes may be connected to each other. For example, the driving touch electrodes TXE may be connected to each other while the first bridge electrode BRG1 is positioned under the touch interlayer insulating layer 620 . In this case, the second bridge electrode BRG2 may be positioned on the interlayer insulating layer 620 and integrally formed with the neighboring sensing touch electrodes RXE to connect the sensing touch electrodes RXE to each other. Also, the first bridge electrode BRG1 may be connected to the driving touch electrode TXE formed on the touch interlayer insulating layer 620 through the contact hole CH-T formed in the interlayer insulating layer 620 .

The driving touch line TXL is connected to the touch pad TP1 through a driving touch link line TXLL that may be disposed in the non-display area NDA, and the sensing touch line RXL is connected to the sensing touch link line RXLL. It can be connected to the touch pad TP2 through.

Referring to FIG. 8 , an enlarged view of area A, which is part of the first sub-display area OA1 and the second sub-display area NA of FIG. 7 , will be looked at.

8 illustrates an example in which the driving touch electrodes TXE are arranged in the X-axis direction and the sensing touch electrodes RXE are arranged in the Y-axis direction. However, the reverse is also possible.

The touch panel TP corresponding to the display area DA is arranged spaced apart at a first distance while crossing the first touch sensor line TSL1 and the first touch sensor line TSL1 arranged at a first distance. The second touch sensor lines TSL2 form a lattice with each other and form a net shape. The interval between the first touch sensor lines TSL1 and the interval between the second touch sensor lines TSL2 may be different from each other. However, in this example, the same case is described for convenience of description.

For reference, the touch panel disposed in the display area DA can be divided into a first touch area corresponding to the first sub-display area OA and a second touch area corresponding to the second sub-display area NA. there is.

The interval between the first touch sensor lines TSL1 and the interval between the second touch sensor lines TSL2 are the same throughout the second sub-display area NA except for the first sub-display area OA1.

However, the distance between the first touch sensor line TSL1 and the distance between the second touch sensor lines TLS2 in the first sub-display area OA1 may be arranged at a second distance greater than the first distance. This is to prevent the touch panel disposed in the first sub-display area OA1 from blocking light. That is, as the first touch sensor line TSL1 and the second touch sensor line TSL2 disposed in the second sub-display area OA1 are arranged narrower to each other, they enter the first sub-display area OA1 from the outside. This is because the amount of blocking light increases.

The second interval may be an integer multiple greater than the first interval. That is, the first touch sensor line TSL1 and the second touch sensor line TSL2 arranged in the first sub-display area OA1 have a first gap of a first distance arranged in the second sub-display area NA. Among the touch sensor line TSL1 and the second touch sensor line TSL2 , each of the two touch sensor lines TSL2 may be arranged while being deleted, or two of the three touch sensor lines may be deleted. Accordingly, the first touch sensor line TSL1 and the second touch sensor line TSL2 disposed in the first sub-display area OA1 such that the second spacing is an integer multiple of the first spacing are the second sub-display area NA. ) It is disposed at a lower density than the first and second touch sensor lines disposed in ).

In this way, when the arrangement density of the touch sensor lines corresponding to the first sub-display area OA1 and the second sub-display area NA is different, the touch sensor metal disposed in the first sub-display area OA1 is touched. Sensitivity may decrease.

Therefore, in the first embodiment of the present specification, a method of widening the corresponding area between adjacent touch sensor metals in order to compensate for a decrease in touch sensitivity due to a low density of touch sensor lines disposed in the first sub-display area OA1. presents

To explain this in detail, referring to FIG. 8 , area C inside the touch sensor metal disposed in the second sub-display area and area C′ inside the touch sensor metal disposed inside the first sub-display area. Comparing and describing the area B' displaying the boundary between the touch sensor metals disposed in the second sub-display area and the area B' displaying the boundary between the touch sensor metals disposed in the first sub-display area. do.

9 is a plan view illustrating an actual structure in which a touch sensor metal according to the first embodiment of the present specification is disposed in the first sub-display area OA1 and the second sub-display area NA.

Referring to FIG. 8 , it can be seen that a low density of touch sensor lines is disposed in the first sub-display area OA1.

On the other hand, comparing area B, which is the boundary between touch sensor metals disposed in the second sub-display area, and area B', which is the boundary between touch sensor metals disposed in the first sub-display area, with reference to FIG. 9 , The touch sensor metal includes a finger structure in region B′, which is a boundary between touch sensor metals disposed in one sub-display area.

That is, when the mutual capacitance method is adopted as the touch sensor, the capacitance increases as the corresponding area between the driving touch electrode TXE and the neighboring sensing touch electrode RXE increases. Therefore, in the first embodiment of the present specification, the driving touch electrode (TXE) and the sensing touch electrode (RXE) may have edges formed in a finger structure.

This will be described with reference to FIGS. 10A and 11A. 10A illustrates a structure of a cutting line formed at a boundary between a driving touch electrode TXE and a sensing touch electrode RXE in the second sub-display area NA in FIGS. 8 and 9 . Referring to FIG. 10A , the cutting line CL enters the inside of the driving touch electrode TXE and the sensing touch electrode RXE while cutting in a zigzag shape between the driving touch electrode TXE and the sensing touch electrode RXE. It has fingers of 1 length. The total length of the finger is denoted by K.

In contrast, a cutting line CL is formed between the driving touch electrode TXE and the sensing touch electrode RXE in the first sub-display area OA1, and the driving touch electrode TXE and the sensing touch electrode RXE It has a zigzag shape as it goes deeper into the interior. That is, the edge of the driving touch electrode TXE and the sensing touch electrode RXE of the first sub-display area OA1 includes a finger that penetrates deeper into the driving touch electrode TXE and the sensing touch electrode RXE. do. When the length of the finger formed in the first sub-display area OA1 is expressed as K', K' is greater than K.

As a result, the mutual capacitance may increase because the area of the edges facing each other of the driving touch electrode TXE and the sensing touch electrode RXE adjacent to each other in the first sub-display area OA1 may increase.

All of the driving touch electrodes TXE and all of the sensing touch electrodes RXE disposed in the first sub-display area OA1 touch a finger at the boundary between the adjacent driving touch electrodes TXE and sensing touch electrodes RXE. In addition, the finger may have a greater length than a finger formed in the second sub-display area NA.

In the first embodiment of the present specification, the sizes of the driving touch electrode TXE and the sensing touch electrode RXE may be substantially the same in the first sub-display area OA1 and the second sub-display area NA. can

FIG. 11B shows a configuration of a finger FG formed while a cutting line cuts the first touch sensing line TSL1 and the second touch sensing line TSL2 in area B' of the first sub-display area OA1. .

In the first embodiment of the present specification, the shape of the finger may be different. Referring to FIG. 12A , the finger may enter the driving touch electrode TXE and the sensing touch electrode RXE in the shape of a villi. As a result, when the edges of the driving touch electrode TXE and the sensing touch electrode RXE face each other, the area may be further increased.

FIG. 12B shows a configuration of a finger FG formed while a cutting line cuts the first touch sensing line TSL1 and the second touch sensing line TSL2 in area B' of the first sub-display area OA1. .

FIG. 13 proposes another structure in which capacitance may increase between touch electrodes disposed in the first sub-display area OA1 as a second embodiment of the present specification.

Referring to FIG. 13 , the arrangement density of the first touch sensor line TSL1 and the second touch sensor line TSL2 disposed in the first sub-display area OA1 is the same as that of the first embodiment of FIG. 7 . The description below is omitted.

However, in the second embodiment, the size of the touch sensor metal disposed in the first sub-display area OA1 may be smaller than the size of the touch sensor metal TSM disposed in the second sub-display area NA. .

All of the touch sensor metals TSM disposed in the second sub-display area NA may have substantially the same size. Also, the sizes of the touch sensor metals TSM disposed in the first sub-display area OA1 may be substantially the same as each other. However, the size of the touch sensor metal TSM disposed in the first sub-display area OA1 is smaller than the size of the touch sensor metal TSM disposed in the second sub-display area NA.

As a result, more touch sensor metals TSM may be disposed per unit area in the first sub-display area OA1, so that more bridge electrodes BRG per unit area are included.

While the distance between the driving touch electrode TXE and the sensing touch electrode RXE is substantially several hundred micrometers (um), the size of the bridge electrode BRG is several micrometers (um), and the bridge electrode BRG per unit area ) means that the mutual capacitance can be that large.

Therefore, in the second embodiment of the present specification, capacitance is increased by increasing the number of bridge electrodes BRG disposed per unit area by reducing the size of the touch sensor metal TSM disposed in the first sub-display area OA1. can make it

In addition, if the size of the touch sensor metal TSM disposed in the first sub-display area OA1 is smaller than the size of the touch sensor metal TSM disposed in the second sub-display area NA, the finger can move the second sub-display area NA. Between the driving touch electrode TXE and the sensing touch electrode RXE existing within the area where the finger touches the touch panel when the first sub-display area OA1 is touched rather than when the sub-display area NA is touched Corresponding area may increase.

Meanwhile, the touch sensor metals TSM are connected in one column to form a driving touch line TXL and a sensing touch line RXL. In other words, it can be seen that the touch sensor metal TSM is directly connected to the driving touch line TXL and the sensing touch line RXL.

However, in the second embodiment of the present specification, the size of the touch sensor metal TSM disposed in the first sub-display area OA1 is smaller than that of the touch sensor metal TSM disposed in the second sub-display area NA. Because it is small, a part of the touch sensor metal TSM disposed in the first sub-display area OA1 may not be directly connected to the driving touch line TXL or the sensing touch line RXL but may be indirectly connected.

That is, referring to FIG. 13 , the driving touch electrode TXE-f disposed in the first sub-display area OA1 is driven by the driving touch electrode TXE-g disposed in the first sub-display area OA1. It can be connected to the driving touch line TXL. Similarly, the sensing touch electrode RXE-h disposed in the first sub-display area OA1 is connected to the sensing touch line RXL through the sensing touch electrode RXE-i disposed in the first sub-display area OA1. ) can be connected to

Of course, it is obvious that a part of the touch sensing metal TSM disposed in the first sub-display area OA1 may be directly connected to the driving touch line TXL or the sensing touch line RXL.

Also in the second embodiment of the present specification, the touch sensor metal TSM has a mesh shape formed while the first touch sensor line TSL1 and the second touch sensor line TSL2 cross each other, and the cutting line is the first touch sensor line ( TSL1) and the second touch sensor line TSL2 may be defined by cutting each.

Next, a third embodiment of the present invention will be described with reference to FIGS. 14 to 16 .

In the third embodiment, the touch panel TP is disposed under the touch interlayer insulating layer 620 while corresponding to the touch panel TP formed on the touch interlayer insulating layer 620 and the first sub-display area OA1. and a sub-touch panel (STP). The touch panel TP may have the same structure as the touch panel TP of the first embodiment described above.

That is, the touch panel TP includes a first touch area corresponding to the first sub-display area OA1 and a second touch area corresponding to the second sub-display area NA, and A size of the meshes disposed may be greater than a size of meshes disposed in the second touch area. Also, one of the driving touch electrode TXE and the sensing touch electrode RXE may be directly connected to each other, and the other may be connected to each other through a bridge electrode BRG.

In this case, the bridge electrode BRG may be disposed below the touch interlayer insulating layer 620 .

In order to increase the sensing sensitivity of the touch sensing metal disposed in the first sub-display area 0A1, the third embodiment of the present specification is provided below the touch interlayer insulating layer 620 in the first sub-display area OA1. A sub-touch panel (STP) is further formed. The touch sensing metal TSM disposed on the touch interlayer insulating layer 620 in the first sub-display area OA1 and the touch sensing metals in the sub-touch panel STP may be electrically connected to each other.

The configuration of the sub-touch panel STP may be the same as that of the touch sensing metal disposed on the upper surface of the touch interlayer insulating layer 620 of the first sub-display area OA1. However, in order to avoid a short circuit between the driving touch electrode TXE and the sensing touch electrode RXE formed on the same plane, the connection relationship between the touch sensing metals may be different.

Hereinafter, referring to FIGS. 15A to 15C , the touch sensing metal (TSM) positioned in the first sub-display area OA1 and the touch interlayer insulating layer 620 are positioned below the first sub-display area OA1. The connection relationship between the disposed sub-touch sensing metals will be described.

The touch sensing metal TSM disposed in the first sub-display area OA1 includes a driving touch electrode TXE and a sensing touch electrode RXE. In addition, the sub-touch sensing metal under the touch interlayer insulating layer 620 disposed in the first sub-display area OA1 includes the sub-driving touch electrode S-TXE and the sub-sensing touch electrode S-RXE. includes

An example will be described with reference to FIG. 15A.

A first driving touch electrode TXE1 and a second driving touch electrode TXE2 are disposed along a driving touch line TXL disposed in the first sub-display area OA1 and disposed on the touch interlayer insulating layer 620. and they can be electrically connected to each other. In the embodiment shown in FIG. 15A , the first driving touch electrode TXE1 and the second driving touch electrode TXE2 may be integrally connected.

Meanwhile, the touch sensing metal TSM disposed in the first sub-display area OA1 and disposed under the touch interlayer insulating layer 620 is the first sub-driving touch electrode S along the driving touch line TXL. -TXE1) and the second sub-driving touch electrode S-TXE2 are disposed, but they are electrically separated from each other.

Meanwhile, the first driving touch electrode TXE1 and the first sub-driving touch electrode S-TXE1 may be connected to each other at at least one point through a contact hole (not shown) passing through the touch interlayer insulating layer 620. there is. In addition, the second driving touch electrode TXE2 and the second sub-driving touch electrode S-TXE2 may be connected to each other at at least one point through a contact hole (not shown) passing through the touch interlayer insulating layer 620. there is. Therefore, when a finger touches the first sub-display area OA1, the driving touch electrode TXE and the sub-driving touch electrode S-TXE positioned above and below the touch interlayer insulating layer 620 are integrally formed. can work

Meanwhile, the connection relationship of the sensing touch electrodes RXE disposed in the first sub-display area OA1 will be described with reference to FIG. 15B.

A first driving touch electrode TXE1 and a second driving touch electrode TXE2 are disposed along a driving touch line TXL disposed in the first sub-display area OA1 and disposed on the touch interlayer insulating layer 620. and they can be electrically connected to each other. In the embodiment shown in FIG. 15A , the first driving touch electrode TXE1 and the second driving touch electrode TXE2 may be integrally connected.

Meanwhile, the touch sensing metal TSM disposed in the first sub-display area OA1 and disposed under the touch interlayer insulating layer 620 is the first sub-driving touch electrode S along the driving touch line TXL. -TXE1) and the second sub-driving touch electrode S-TXE2 are disposed, but they are electrically separated from each other.

A first driving touch electrode TXE1 and a second driving touch electrode TXE2 are disposed along a driving touch line TXL disposed in the first sub-display area OA1 and disposed on the touch interlayer insulating layer 620. and they can be electrically connected to each other. In the embodiment shown in FIG. 15A , the first driving touch electrode TXE1 and the second driving touch electrode TXE2 may be integrally connected.

Meanwhile, the touch sensing metal TSM disposed in the first sub-display area OA1 and disposed under the touch interlayer insulating layer 620 is the first sub-driving touch electrode S along the driving touch line TXL. -TXE1) and the second sub-driving touch electrode S-TXE2 are disposed, but they are electrically separated from each other.

Meanwhile, the first driving touch electrode TXE1 and the first sub-driving touch electrode S-TXE1 may be connected to each other at at least one point through a contact hole (not shown) passing through the touch interlayer insulating layer 620. there is. In addition, the second driving touch electrode TXE2 and the second sub-driving touch electrode S-TXE2 may be connected to each other at at least one point through a contact hole (not shown) passing through the touch interlayer insulating layer 620. there is. Therefore, when a finger touches the first sub-display area OA1, the driving touch electrode TXE and the sub-driving touch electrode S-TXE positioned above and below the touch interlayer insulating layer 620 are integrally formed. It can work.

Meanwhile, the connection relationship of the sensing touch electrodes RXE disposed in the first sub-display area OA1 will be described with reference to FIG. 15B.

A first driving touch electrode TXE1 and a second driving touch electrode TXE2 are disposed along a driving touch line TXL disposed in the first sub-display area OA1 and disposed on the touch interlayer insulating layer 620. and they can be electrically connected to each other. In the embodiment shown in FIG. 15A , the first driving touch electrode TXE1 and the second driving touch electrode TXE2 may be integrally connected.

A first sensing touch electrode RXE1 and a second touch sensing electrode RXE2 are disposed along a sensing touch line RXL disposed in the first sub-display area OA1 and disposed on the touch interlayer insulating layer 620 . and they can be electrically isolated from each other.

Meanwhile, a first sub-sensing touch electrode S-RXE1 and a second sub-touch sensing electrode S-RXE2 disposed in the first sub-display area OA1 and disposed under the touch interlayer insulating layer 620 ) may be disposed along the sensing touch line RXL and electrically connected to each other.

In addition, the first sensing touch electrode RXE1 and the first sub-sensing touch electrode S-RXE1 may be connected to each other at at least one point through a contact hole (not shown) passing through the touch interlayer insulating layer 620 . there is. In addition, the second sensing touch electrode RXE2 and the second sub-sensing touch electrode S-RXE2 may be connected to each other at at least one point through a contact hole (not shown) penetrating the insulating layer 620 between touch layers. there is. Therefore, when a finger touches the first sub-display area OA1, the sensing touch electrodes TXE and the sub-sensing touch electrodes S-TXE positioned above and below the touch interlayer insulating layer 620 are integrally formed. It can work.

15C shows a configuration in which the aforementioned driving touch electrode TXE and sensing touch electrode RXE are combined.

Accordingly, referring to FIG. 15C , the first sensing touch electrode RXE1 and the second sensing touch electrode RXE2 separated from each other include the first sub-sensing touch electrode S-RXE1 and the second sub-sensing touch electrode connected to each other. The electrodes S-RXE2 may be connected to each other and electrically connected to each other. Similarly, the first sub-driving touch electrode S-TXE1 and the second sub-driving touch electrode S-TXE2 separated from each other are connected to the first driving touch electrode TXE1 and the second driving touch electrode TXE2 connected to each other. They may be connected to each other and electrically connected to each other.

In the third embodiment, the sub-driving touch electrodes S-TXE1 and S-TXE2 and the sub-sensing touch electrodes S-RXE1 and S-RXE2 disposed under the touch interlayer insulating layer 620 are It may be composed of the same metal layer as the bridge electrode provided in the first embodiment and the second embodiment. That is, in the third embodiment, the first sub-sensing touch electrode S-RXE1 and the second sub-sensing touch electrode S-RXE2 disposed under the touch interlayer insulating layer 620 are substantially the first sensing touch It can be said to serve as a bridge electrode connecting the electrode RXE1 and the second sensing touch electrode RXE2.

Meanwhile, although the first embodiment, the second embodiment, and the third embodiment are separately described in this specification, the configuration of the third embodiment is used to increase the touch sensing sensitivity in the first sub-display area OA1. It is also possible to add to the embodiment and the second embodiment.

That is, in the configuration of the first embodiment having a finger structure, the sub-touch sensing metal connected to the touch sensing metal disposed on the touch interlayer insulating layer 620 under the touch interlayer insulating layer 620 is configured as in the third embodiment. It is also possible.

In addition, in the configuration of the second embodiment including the touch sensing metal smaller than the second sub-display area NA in the first sub-display area OA1, the same sub-touch sensing metal as in the third embodiment is provided to make a touch Sensing sensitivity may be increased.

Although the embodiments of the present specification have been described in more detail with reference to the accompanying drawings, the present specification is not necessarily limited to these embodiments, and may be variously modified and implemented without departing from the technical spirit of the present specification. Therefore, the embodiments disclosed in this specification are not intended to limit the technical spirit of the present specification, but to explain, and the scope of the technical spirit of the present specification is not limited by these embodiments. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. The protection scope of this specification should be construed according to the claims, and all technical ideas within the equivalent range should be construed as being included in the scope of this specification.

OA1: first sub-display area
NA: third sub-display area
11: optical electronics
TSL1, TSL2: Touch sensor line
CL: cutting line
TXE: driving touch electrode
RXE: sensing touch electrode
BRG: bridge electrode
TXL: driving touch line
RXL: Sensing Touch Line
FG: finger part
620: insulating layer between touch layers

Claims (19)

It includes a display area and a non-display area disposed around the display area, wherein the display area includes a first sub-display area including a plurality of light transmission areas and a second sub-display area around the first sub-display area. A display panel comprising a;
an optical electronic device disposed on a rear surface of the display area and overlapping the first sub-display area; and
a mesh-shaped touch panel disposed on the front surface of the display panel and including a first touch area corresponding to the first sub-display area and a second touch area corresponding to the second sub-display area; ,
A mesh of the first touch area is larger than a mesh of the second touch area;
A corresponding area between each touch electrode disposed in the first touch region is greater than a corresponding area between each touch electrode disposed in the second touch region. In paragraph 1,
The touch panel includes a capacitance touch electrode of a mutual capacitance sensing method for detecting a capacitance generated between a driving touch electrode and a sensing touch electrode. In paragraph 2,
The display device of claim 1 , wherein the touch electrodes respectively disposed in the first touch region and the second touch region have substantially the same size as each other. In paragraph 2,
Each touch electrode disposed in the first touch area includes a first finger portion extending toward a neighboring touch electrode adjacent to each other at an edge of the touch electrode, and each touch electrode disposed in the second touch area includes a neighboring touch electrode disposed in the second touch area. A display device including a second finger portion extending toward an edge of the touch electrode, wherein a corresponding area between the first finger portions is greater than a corresponding area between the second finger portions. In paragraph 4,
The first finger portion is longer than the second finger portion. It includes a display area and a non-display area disposed around the display area, wherein the display area includes a first sub-display area including a plurality of light transmission areas and a second sub-display area around the first sub-display area. A display panel comprising a;
an optical electronic device disposed on a rear surface of the display area and overlapping the first sub-display area; and
a mesh-shaped touch panel disposed on the front surface of the display panel and including a first touch area corresponding to the first sub-display area and a second touch area corresponding to the second sub-display area;
A mesh of the first touch area is larger than a mesh of the second touch area;
A size of each touch electrode disposed in the first touch region is smaller than a size of each touch electrode disposed in the second touch region. In paragraph 6,
The touch panel includes a capacitance touch electrode of a mutual capacitance sensing method for detecting a capacitance generated between a driving touch electrode and a sensing touch electrode. In paragraph 7,
At least one driving touch electrode disposed in the first touch area is indirectly connected to a driving touch line, and at least one sensing touch electrode disposed in the first touch area is indirectly connected to a sensing touch line. In paragraph 6,
The number of bridge electrodes connecting the touch electrodes disposed in the first touch area to each other is the number of bridges disposed in the second touch area corresponding to the same area as the first touch area among the second touch areas and connecting the touch electrodes to each other. A display device with more than the number of electrodes. In paragraph 6,
The touch electrodes disposed in the first touch region have the same size as each other, and the touch electrodes disposed in the second touch region have the same size as each other. In claim 1 or 6,
The touch panel is disposed on an insulating layer between touch layers, and a mesh-shaped sub-touch electrode disposed in the first touch region on a rear surface of the insulating layer between touch layers and electrically connected to touch electrodes constituting the touch panel. A display device further comprising; In paragraph 11,
Among the touch electrodes, touch electrodes separated from neighboring touch electrodes are electrically connected to each other by the sub-touch electrodes. It includes a display area and a non-display area disposed around the display area, wherein the display area includes a first sub-display area including a plurality of light transmission areas and a second sub-display area around the first sub-display area. A display panel comprising a;
an optical electronic device disposed on a rear surface of the display area and overlapping the first sub-display area;
an insulating layer between touch layers disposed on an upper surface of the display panel; and
A mesh-shaped touch panel disposed on one surface of the touch interlayer insulating layer and including a first touch area corresponding to the first sub-display area and a second touch area corresponding to the second sub-display area,
A mesh of the first touch area is larger than a mesh of the second touch area;
A display device comprising a mesh-shaped sub-touch panel disposed on the other surface of the touch interlayer insulating layer and electrically connected to a touch panel disposed in the first touch region. In paragraph 13,
The touch panel includes a mesh-shaped driving touch electrode and a sensing touch electrode, and the sub-touch panel includes a mesh-shaped sub-driving touch electrode and a sub-sensing touch electrode, wherein the driving touch electrode and the sensing touch Any one of the electrodes is connected to each other by any one of a sub-driving touch electrode and a sub-sensing touch electrode disposed on the other surface of the touch interlayer insulating layer. In paragraph 14,
When the driving touch electrodes are arranged along a driving touch line and connected to each other, the sensing touch electrodes are arranged along a sensing touch line crossing the driving touch line and separated from each other at an intersection of the driving touch line and the sensing touch line. The sensing touch electrodes are electrically connected to each other by the sub-sensing electrodes. In any one of claims 1, 6 and 13,
The display device of claim 1 , wherein a mesh of the first touch area is larger than an integer multiple of a mesh of the second touch area. In clause 15,
The sensing touch electrode and the sub-sensing electrode are connected to each other through a contact hole formed in the insulating layer between the touch layers. In clause 15,
The display device of claim 1 , wherein sub-drive touch electrodes arranged along the drive touch line are physically separated from each other and electrically connected to corresponding drive touch electrodes. In clause 15,
Sensing touch electrodes arranged along the sensing touch line are physically separated from each other and electrically connected to corresponding sub-sensing touch electrodes.

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